### Bash PERT Calculator > A simple utility to estimate tasks using PERT (Program evaluation and review technique) ### Demo ![pert example](https://cloud.githubusercontent.com/assets/6382002/13582789/8205bac0-e4ae-11e5-9a03-894e32943f30.gif) ### Usage Comma separated task list in the form `"name,1,2,12 name,4,5,9 name,2,3,6"`, where whitespace separates tasks. (or you can use piping inputs `echo "name,1,2,3 name,10,30,40" | pert`) Usage: `pert [optimistic,realistic,pessimistic]` Example: `pert name,1,3,4` `pert name,10,15,20 name,5,7,10` `pert "name,1,2,3" "name,15,17,20"` `cat data.txt | pert` `echo "name,1,2,3 name,9,10,14" | pert` ### Install ```bash $ git clone https://github.com/arzzen/pert.git && cd pert $ sudo make install ``` For uninstalling, open up the cloned directory and run ```bash sudo make uninstall ``` ### Example Command: `$ ./pert name,5,7,10 name,2,3,4 name,10,12,14` Output:
Tasks +--------------------------------------------------------------------------------------+ | # | optimistic | realistic | pessimistic | duration | risk | variance | +--------------------------------------------------------------------------------------+ | 1. first | 5 | 7 | 10 | 7.16 | 0.83 | 0.68 | | 2. two | 2 | 3 | 4 | 3.00 | 0.33 | 0.10 | | 3. three | 10 | 12 | 14 | 12.00 | 0.66 | 0.43 | +--------------------------------------------------------------------------------------+ | summary | - | - | - | 22.16 | 1.82 | 1.21 | +--------------------------------------------------------------------------------------+ Three point estimates +----------------------------------------+ | confidence | | | +----------------------------------------+ | 1 Sigma - 68% | 20.34 | 23.98 | | 2 Sigma - 95% | 18.52 | 25.80 | | 3 Sigma - 99% | 16.70 | 27.62 | +----------------------------------------+